Pipe connection.



R. M. CORC'ORAN.

PIPE CONNECTION.

APPLICATION FILED JAK, 1S. 150E]v Patented Apr. 26, 1910.

nocting two lead pipes; Fig. 2 represents elevation of a form of in 35 a'smooth bore adapted to form a continu- From the junction of this rib or tlange 2 RICHARD M. CQBCOBAN.

OF CLEVELAND, OHIO.

PIPE CONNECTION.

Specification 0! Letters Patent.

Patented Apr. 26, 1910.

Application filed lanuary 18, 1909. Serial No. 472,815.

larly eliicient form of connection lmtwecn a pipe of soft material. as lead, and another pipe of ,imilar or of diil'er nt material.

More limitedly speaking. the object oft the invention is to provide a ctmpling of this character which will make an extremely etlicient and tight connection without the 3 necessity for the employment of wiped joints or of washers and which will provide a joint that will prevent leakage and at the same time will be particularly strong and durable.

I accomplish these results by the const-ructions illustrated in the drawings formin a part. hereof, wherein-- l igure 1 represents a side elevation of a coupling or connectiox'i constructed in accordance with my inv ntion. showing the same applied for the purposc of cona longitudlnal sectional view of the device shown in Fig. 1; Fig. 3 represents an end invention adapted for the connection 0 a lead pipe to a pipe of dissimilar material, as brass or iron; Fig. 4 re )resents a longitudinal sectional view of t e device shown in the preceding figure; Fig. 5 represents a lon 'itudinal sectional view through a thim he or ferrule, showing my invention employed for the purpose of securing a lead pipe thereto.

Describing the parts specific ly and with articular references to Figs. 1 and 2, 1 denotes a combined support or base and joint-forming member, said member having ation of the bores of the pipe sections connected thereto and having a central outwardly projecting circular rib or flange 2 provided in opposite faces thereof with annular recesses 3. 3 the outer portion of said rib or flange being smooth. as shown at- 4.

with the body of .the member, said member I each side of said rib an inclined supporting surface or seat 5 for the ad acent flared end of a lead pipe, two of such pipes being shown at ti. and 6 respectively. I have found in practice thatv a taper of about ten degrees for the seats or surfaces 5 is particularly otlicient and enables the lead pipe to be readily adjusted bodily along such seats or surfaces.

With the base member 1, I employ three connecting members. One of these members 7 is a sleeve located on one side of the rib or flange 2, and another member, similar to member 7, is located on theopposite side of said rib or flange. The member 7 is provided with an externally threaded flange 8 at one end thereof and with a tapered outer surface extendin from said flange. On the interior of the lunged end of the sleeve 7 there is provided an annular recess 9 for the reception of the outer edge =1 of the rib or flange 2. The recess 9 is provided with a shortinwardly-projccting shoulder 10, which forms an abutment for one edge of the flange 2. From the shoulder 10, the inner surface of the connecting member 7 is tapered complementarily to the outer surface of the base member 1 and is provided ,with a shallow internal thrtad 11 in such tapered portion. At the outer end of the thread 11, the inner surface of the member 7 extends substantially parallel with the axis of the pipe section 6'. The second connecting member is shown at 12 and comprises a. sleeve similar to the member 7 as to inclination and as to shallow internal thread 13. At its inner end, the member 12 is provided with an outwardly rejecting flange 14 which is adapted to abut against the adjacent outer edge of the flange 2 in the same manner as said flange is engaged by the shoulder 10 of the member 7. The third connecting member comprises the nut 15, which nut is provided with an inwardly projecting flange 16 hav ng a ta cred inner surface conforming to and a opted to slide upon the outer surface of member 12, said flange being adapted to engage the ange 14 on said member 12. The opposite rid of the' nut is provided with an internal thread 17 adapted to engage the external thread on the flange 8.

In applying this coupling to the lead pipe sections 6 and 6, the nrnnbers 7 and 12 are first slipped over the ends of the pipe sectapers in opposite directions, forming on t tions, the nut 15 being applied to the section tioiis abut, against, the rib or flange .2 as notes the base member, the same comprising closely as possible. The hieinbers 7 and 12 i :1 tubular body pro ided with a smooth inner are then slipped along the flared endsot the sprface adapted to form a continuation of pipe sections and t) as far as they can be t ie bores of the pipe sections to which it is m moved conveniently by hand, which will orconnected. Near one end of said bore. the 75 dinarily be sutliciently far to enable the nut 5 body 21.15 provided w th an ont\\'ardl "pro '14 to be threaded onto the flange 8. As will ectiug flange 2'3, provided with an external be seen from the drawings, the. members 7 i thread 23. The flange 22 is conveniently and 12 are each provided with a ser es of t formed as a cylindrical projection from the 15 external corrugations or recesses, indicated larger -angular flange it, the latter tlange so at 18 and 19 respectively, said corrugations having a threaded bore 2-: of greaterdiameor recesses being for the reception of a tei' than the bore of the main part of the wrench of the-btilson type. By means 0 body E 2l. the threaded bore 2-3 is for the such wrenches, these members may be 1 reception of the pipe section 26, which is of g threaded along the flared ends of their rei r g d material, as iron or brass. The tlange 85 spective pipe sections. The internal threads i 22 is provided in the face opposite the tlaiige 11 and 13 are very shallow. In practice I l 24 with an annular recess 22. From the have found that a depth of l/tH inch tor l inner periphery or base of the flange 2-2, the such threads is very satisfactorv. This 5 surface of the body 21 tapers inwardly or 25 shallowness or lightness of thread prevents l toward the bore, as shown at .27. in the same 90 these members from being stopped iii their manner as the surface of the base of supniovement by hand along the pipe sections 1 porting member 1. :8 denotes :i'sh'cve, the until each member is nearly in its fully adinner surface whcri-ot' is tapered compleusted position. By' the applicatioii' of a nieiitarily to the inclination of the surface wrench to each of said members, these memi lt ot the supportv The inner surface of bers areadjusted farther along the tapered this slee e is providedwith a light or shalplpes and the action of their light threads low thread :29, similar to the threads of the or projections on the pipe sections is to force l members 7 and 1:4. The ttared end of the the pipe sections along the slightly tapered i sleeve 2b: merges with a nut :30 which is probase, equalizing the thicknessof the pipe 5 vidcd with a threaded bore adapting it to be 100 12. The adjacent ends of the pipe sections are then flared outwardl to enable them to slip over the inclined ent s of the supporting member or base I and are slipped along said 3 inclined ends until the ends oi the pipe secscction ends and forcing the ends of such I sections into the recesses 3, with the result 3 that the soft metal of each section is forced into the recesses 3 so tightly to take the f modification shown ll: these-figures. but two i coiinectin members are einplo 'cd. namely. a recessed base member and a cooperating internally threaded clamping member. ltcferring by numerals to said figures. :l detitted onto the threads :3 of the llaiige 22. In connecting the load pipe :31 to a rigid j pipe 26. the mode of operation is similar to i that cinpl red in connecting the two sections 40 shape of said recesses and to form fli\\7 :t5ll9l of lead pipr shown in l-igs..t and '2. The 05 of the metal itself between the end of each i rigid pipe is simply threaded into the base section and the rib or flange The nut l5 member ill. The combined 'slcevc. and nut is provided with corrugations or recesses :10 (28, 30) is slipped onto the. end of the lead for the application of a wrench of the Stilpipe, said pipe is then tlarcd outwardly and son type thereto. By ti; htenin up this applied to the tapered surface 27 of the base 10 nut, the members 7 and 12 are he d against 1 ill. The nut 30 is tli .adcd onto the flange tight and l 22. and the HtljlFtmtl of the nut causes the displacement and an extremely cllicient joint is provided between the ends threads 29 to cut. into the lead pipe, equalizof the pipe sections and the central suping the thickness of said pipe between the base and the sleeve and compacting tlie ml of the pipe into the. annular recess 22, ft .m-

50 porting member 1.

The form of my invention shown in Figs.

in a washer from the. lead itself which eftectively prevents any leakage at the joint 1 and 2 is particularly useful in connecting the ends of pipes in more or less inaccessible between the coupling and the lead pipe.

In Fig. 5 there is shown a still further laces, as for instance in a trench. \Vhen it 5 1S desired to tighten up the nut 15 or either modification of my invention, illustrating the manner in which a lead pipe may be of the members 7 and 12, wrenches may be ap lied to said members which will prevent eit er of them and the pipe sections conconnected to a ferrule. In this modification,

the end of the ferrule forms one of the connecting members corresponding to the combincil base and connector 21 in Fig. 4. In

nected thereto from turning during the 60 operation of tightening said nut or said the last-mentioned figure, 3 2 denotes a ferrule, the same being provided at one end members. i

In Figs. 3 and 4 there is shown a modificaconnecting a lead pipe to a pipe of dissimij with the customary flange 33 and having its' ,lar material, such as iron or brass. In the t opposite end taperei'l, to provide an inclined .13:

tion of my invention which is adapted for I ferrule 32 is provided with a thread adapted to mesh with the thread 38 on the flange 36.

seat 3% for the. adjacent end of the lead pipe 35. The inner end of the tapered surface 3- merges with a flange 36 having an annular recess 3? in the wall thereof which faces the adjacent. end of the ferrul and said flange is provided on its outer meriphery with a screw-thread cl-4. The end of the. ferrule which is provided with the inclined surface 34, flange 36 and recess 37 corresponds functionally to the element 21 of the preceding modification of my invention. 39 denotes a combined nutand clamping member or sleeve. the same being provided with a teiciecl inner surface 40 having light or shallow screw threads 41 on the interior thereof.

The end of the member 39 which projects inwardlv or toward the central portion of the The operation of connecting the lead pipe to the end of the ferrule is substantially the same as that of connecting the lead pipe to the end of the body 31 in the preceding modification. The light or shallow threads on the inner surface of member 39 equalize the thickness of the lead pipe between the interior of the member 39 and the tapered surface 34 and mid threads force the upper or flared end of the lead pipe firmly into the annular reces 37, formi from the pipe a washer of tin same material which effectually prevents leakage at the joint. The opposite end of the ferrule is shown as calked into a conduit of rigid material. as iron or bram, 42. The member 39 is provided in its outer surface with a series of corrugations or recesses 29"for the reception of a wrench of the Stilson type. as is the case with the nut 15 in Figs. 1 and Q.

The constructions shown herein disclose very efficient forms of connections between two lead pipes and between a pipe of lead and a pipe. of other material. The connection dispenses with the necessity for wiped joints and is particularly efficient both as to strength and anti-leaking qualities.

In all forms of my invention disclosed herein, the supporting surfaces or seats shown at 5, 27. and 34 are. of slight taper or inclination. As previously stated. a taper of about 10 degrees has been found to be very efficient, as this provides comparatively long supporting surfaces for the ends of the lead pipes, enables the pipes to be forced along the surfaces by the threads or projections on the interior of the sleeves, and at the same time makes itunnecessary to flare the ends of the pipes to such an extent; as to thin the metal and reduce the strength, as is the case with other constructions with which I am familiar. It is unnecessary to reduce the thickness of the ends of the pipes in order to apply them to the support. Furthermore, in all forms of my invention the sleeves, when adjusted, arev in substantial the pi engagement with the outer surface of the tlange against which the (flltln of the lead pipes ahitt. This confines the rnds of the pipes as they are compacted :ljJHHIH the outwax-ill) projecting tlangc by the slt-i'VPS having the shallow threads, and enables a washer to be fornu-d. between the flange and the leeve. from the metal of the pipe itself.

Having thus (lt'm'l'llrttl my invention. what I claim is:

l. The combination. with the, [lured nd of a lead pipe. of a connecting device. said device comprising a body having a tapered supporting surface for the flared end of said lead pipe and an outwardly projecting flange at the nlarged end of such tapered surface. said flange being provided with an annulmrecess in the fa re presented toward said pipe, and a sleeve surrounding the llarcd end of and having an internal surface taperei complonientarily to the inclined surface of the supporting body and provided on such tapered internal surface with an internal thread and provided with a portion adapted to be. brought into substantial cugagenn-nt with the outer surface of said flange.

2. The combination, with the flared end of a lead pipe. of a connecting device. said device comprising a body having a in )tlQtl supporting surface for the flared end oi said iced pipe and an outward y projecting flange at the enlarged end of such tapered surface, said flange being provided with a rece s in the face presented toward said pipe. and a sleeve surrounding the flared end of the pipe and having an internal surface tapered coinplr-nientarily to the inclined surface of the connecting device and provided with means adapted to engage the flared end of said pipe and force the end into said recess and provided with a'- portion adapted to be brought intosubstantial engagement 'with the outer surface of saidflange. I

3. The combination, with a supporting member having an internal bore and having an outer surface tapering toward said bore, of a flange projecting from 'said tapered surface at the flared or widened end thereof and provided between such surface and its outer periphery with a recess, a lead pipe having a flared end fittcd'on the inclined surface of said support, and a sleeve on the flared end of said pipe and having its inner surface flared or tapered complementarily to the tapered outer surface of said support and having a shallow thread adapted to engage the pipe, and means whereby said sleeve may be rotated with respect to said pipe and said support, said sleeve bein adapted to form with said flan e a close space confi'nin the flared end of the pipe.

' 4. fihe combination, with a supporting f a tlaug proje ting from said tapered sur- 1 face at thc flared or \iidcnt-d end thereof? tapered surface of the base member and r0- and provided hctwccn such sh: lace and it ulitt'i p l'iplicr llll an annular l'tttFS.

lcad pipc having'a llarcd end titled on the I inclined snrl'actof said -nppt-rting mem er. a sleeve on tln llarcd ml of said pipe and having its inner surface llzllttl or tapci'cd coinplcincntaril v to the tapered ontcr surface nl said ltlt'lltllt'l' and having a shallow thr ad I a-laptcd to ugagc the pip and a nut for moving aid leeve al ng the tlai'cd end of said ii 1c. the sleeve )tlll"' arranged to form with the llangc a clo-cd space c nlining the llnt'cd end of said pipe.

5. As a means for connecting a lead pipe with a pipe of dissimilar material. the coinhination of a base member having a connection for the latter pipe. an outwardly pro- .jccting flange having, a thread on its outer screw thread. and a sleeve having its interior surface tapered complementarity to the vided on such interior surface with a s allow screw thread and having an internally threaded extension adapted to enga e the thread on the outer surface of said flange, the lead pipe having a flared end inserted between the tapered base and the sleeve.

S. The combination. with the flared end of a lead pipe. of a connecting device, said device conir 'ising a body having a supporting surface for the pipe. said surface having a slight taper and said body being provided at the widened end of said surface with anouiwardly projecting flange having a recess in the. outwardly projecting face thercot'. and a sleeve surrounding the flared end of the pipe and having an internal sursurl'ace and a recess intcrincdiat of theinner and outer peripheries thereof and a tapered surface extending from the l't'tt. !-ttl side of said flangc. and a slccve having its 1 interior tapered complementarily to the tavidcd in such tapered interior with incaus adapted to engage th lead pipe. said sleeve 1 a connection for tlu latter pipe. said ineni- 1 her also having an outwardl projecting flange provided with a thread on its outer surface am] an annular recess intermediate of the inner and outer peripheries thereof and a. tapered surface extending from the reccsscd side of said flange. and a sleeve having itsintcrior tapered complementarily to the ta )ercd surface of the base member and provic ed with a shallow screw thread. said i arranger] to form with the flan e a close sleeve having an internally threaded projection adapted to engage the threaded flange on the base member.

7. The combination. with a lead pipe and a pipe of rigid material. of'ineans for conuceting said pipes. said means comprising a base member iaving a connection for the latter pipe and having a slightly tapered surface. a flange projecting outwardly from the widened end of the tapered surface and having its outer surface provided with a {are i'f plltt complementarily to the inclined surfac of the supporting body and proided with a shallow internal thread on such tapered internal surface and having a 01'- tion adapted to couline the. flared end 0 the lead pipe while th sleeve is being adjusted toward Said flange.

J. The combination. with the flared end of a lead pipe. of a connecting device, said device comprising a body having a tapered supporting surface for the flared end of said ill)" and an outwardly projecting flange adjilt'tlll to the enlarged end of said surface and a sleeve sur ounding the flared end 0% said pipe and l\:t\'lll" an internal surface tapered complementarily to the inclined surface of the supporting body and provided in such surface with one or more projections adapted to engage said pi ie to force the same along said body toward said flange, the tapered surface of said body being substantiall v unobstructed and the taper 0f said bodybeing slight to permit the longitudinal movement of the pipe end therealong by the adjustment of the sleeve. the sleeve being space confining the flared end 0 said pipe.

aml means whereby the sleeve may be ad-.

jnsted toward the flange.

In testimony whereof. I hereunto aflix my signature in the presence of two witnesses. 

